We have converted 4 of our Quad Stacks over to the 24 key fountains along with the segmented blades. After calibrating them and running them for a few months, I went back and compared our monthly waste totals against pre 24 key fountain months and our overall waste per month has dropped by between 3 and 4 percent. All of our operators brag on how much easier and quicker the start ups are. Its been a great investment and we could not be happier with the results!!